From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 305DE2D12EE; Wed, 20 May 2026 16:39:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779295199; cv=none; b=TaxX19b/3fuLfccQvTyfrq67vCpom+8p6cwdZluMSijCJ1vCV2DU836N+qSO2eNqI4uzeIM4Uo4FFLL+1uZW4OiXFXqD3vS0jPAvQSCyjqe/J63Jid82IyyR75ZLpYvRDik1kNyAmj+7N7VRsCi+4+zd0zqWl2qXEiE3MJxXU5c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779295199; c=relaxed/simple; bh=v48o751rr3O+FwnPZ5qIdK+LHRWhmJnWrclFOXm6img=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mWGVps4t93bko2BUrVWiSIjGOboY5vGCwODdOlXK+6oMHJgyr9MaGNJb4jq/7SBZzqsyds9C4nwbtsOEJ+9dKswUICnupZDSwAYR3sUXjtv2qt/IeoYeTIE6DxuIkgkMZAUdwcNqUyfWOMpAVWl8tFmbOwsYjMj/svk8tvVMHoc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kdzE5ESW; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="kdzE5ESW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 961301F000E9; Wed, 20 May 2026 16:39:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779295198; bh=flYoLhmuXMuEV0rkdjSlLdAio74FFWn6yZcKGkNvxnU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=kdzE5ESWP6W1O2bz1C0woZRCOecW5mdUePLY0nsbUXfhbOkSIDLS9pmxdf9Qs7iMR x4pA3POtTFZsSdFlg82Y5Q18VM076kpJza/0ltwb06sUGWcKn+jvpBikFhogLwfmQG f2xxiTsqBdJIQThBdX0TOePK8gn8NDUus/xA4ADI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dmitry Baryshkov , Douglas Anderson , Neil Armstrong , Sasha Levin Subject: [PATCH 7.0 0327/1146] drm/panel: sharp-ls043t1le01: make use of prepare_prev_first Date: Wed, 20 May 2026 18:09:37 +0200 Message-ID: <20260520162155.597783922@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260520162148.390695140@linuxfoundation.org> References: <20260520162148.390695140@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dmitry Baryshkov [ Upstream commit c222177d7c7e1b2e0433d9e47ec2da7015345d50 ] The DSI link must be powered up to let panel driver to talk to the panel during prepare() callback execution. Set the prepare_prev_first flag to guarantee this. Fixes: 9e15123eca79 ("drm/msm/dsi: Stop unconditionally powering up DSI hosts at modeset") Signed-off-by: Dmitry Baryshkov Reviewed-by: Douglas Anderson Signed-off-by: Neil Armstrong Link: https://patch.msgid.link/20260323-panel-fix-v1-1-9f12b09161e8@oss.qualcomm.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c index 36abfa2e65e96..dd1eaba23ad3c 100644 --- a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c +++ b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c @@ -201,6 +201,7 @@ static int sharp_nt_panel_add(struct sharp_nt_panel *sharp_nt) drm_panel_init(&sharp_nt->base, &sharp_nt->dsi->dev, &sharp_nt_panel_funcs, DRM_MODE_CONNECTOR_DSI); + sharp_nt->base.prepare_prev_first = true; ret = drm_panel_of_backlight(&sharp_nt->base); if (ret) -- 2.53.0